Welcome to this edition of “The Week in Tech,” where we recap some of the most interesting technology and mobile stories from the past week. Today we highlight IBM’s shedding of its chip-making unit, Yahoo’s mobile strategy paying off, Twitter’s new...

New GMail feature lets Google Plus users send anyone an email Google, in its never-ending quest to integrate G+ into everything, has launched a GMail feature that lets you email any of your G+ contacts. While this feature may be useful for people who know one another...